Lawrenceville HVAC Company handles heating and cooling for homes and businesses across Lawrenceville and Gwinnett County. We repair, service, install, and replace all major equipment types: central air conditioners, furnaces, heat pumps, mini-splits, and ductless systems. Whether you manage a single-family home, a rental property, or a commercial building, we take the call and scope the job before anything is scheduled.
Getting the diagnosis right is what the visit is for. We do not guess at a fix and we do not quote parts before the system has been checked. Call us between 7 AM and 10 PM, any day of the week, and you will reach someone who can talk through what is happening and tell you what a service call covers.
Call for a quote: (678) 892-8789
No matter what's going wrong with your heating or cooling, we take repair calls seriously at any point during operating hours. A system blowing warm air in July, a furnace that will not turn on in January, a heat pump short-cycling through the night, an HVAC unit that has stopped working entirely: these are not problems to put off.
We handle the full range of breakdown symptoms. No cool air. AC blowing warm. Furnace not heating. Heat pump blowing cold in heating mode. System running constantly without reaching temperature. Frozen coil. Unusual noises from the air handler or the outdoor unit. If something is off, call and describe what you are seeing. Last-minute comfort calls are taken seriously, and we will tell you on the phone what the visit covers before you commit to anything.
One call is all it takes to get it looked at.
When the technician arrives, the real work begins with the symptom. Warm air coming from the vents, no airflow at all, water pooling under the air handler, a frozen evaporator coil: each of those points toward a different cause. A cooling repair visit covers checking the refrigerant charge, inspecting the condenser and evaporator coil, confirming airflow through the air handler, and testing the controls.
Energy-bill concerns are treated as a diagnostic clue, not a secondary issue. A system that is running harder than it should often signals a problem that shows up in the equipment before it shows up on the invoice. We work on central AC systems and split systems across the full range of residential and light-commercial sizes.
A furnace blowing cold air, not turning on, short-cycling, or producing no heat at the vents is a job we scope on the call. The technician checks the igniter, the heat exchanger, the flame sensor, the blower motor, and the control board on arrival. We handle both gas and electric furnace work.
A furnace that short-cycles is not always a parts problem: airflow restrictions and thermostat issues can produce the same symptom. We confirm what is actually causing the behavior before anything is quoted. Give us a call and we will take care of it.
Heat pump diagnosis is its own discipline. The system heats and cools from the same refrigerant circuit, so a heat pump blowing cold in heating mode and a heat pump blowing cold in cooling mode are two different problems. The reversing valve, the refrigerant charge, and the condition of the outdoor coil are all standard inspection points on a heat pump service call.
If your system is running but not producing the right temperature, or if it is switching modes on its own, that is worth a call.
A ductless mini-split that is not cooling, not heating, throwing an error code, or building ice on the indoor head needs a service visit. We check the refrigerant circuit, the drain line, the air filter, and the control board. Mini-split systems are straightforward to diagnose when you know what to look for, and most service calls can be scoped accurately on the phone before the visit is scheduled.
A quick tune-up and a full system swap are two different jobs, and we treat them that way. When a repair no longer makes sense, we give you an honest recommendation on repair versus replacement, never an upsell. The age of the equipment, the cost of the repair relative to the replacement, and how the system has been performing all factor into that conversation.
Full HVAC system replacement, new central air installation, AC replacement, heat pump installations, mini-split installations, and full system upgrades all fall within scope. Heat pumps, furnaces, and mini-splits are all within scope for new installations. You get the price before anything is scheduled, and the rate covers what was discussed on the call.
Call us and we'll walk you through your options.
Gwinnett County's climate is genuinely four-season: summers run hot and humid, and winters are mild but real enough to demand reliable heat. That combination drives specific equipment decisions for homeowners and property managers in this area. The three services below come up most often here, and each one is worth understanding before you call.
A full system replacement in a Georgia home means matching the equipment capacity to the house, coordinating the indoor and outdoor units so they work as a matched pair, and confirming that the ductwork can support the new system's airflow. Lawrenceville's summer heat load makes proper sizing critical. An oversized unit cools the air too fast without removing enough humidity. An undersized one runs constantly and never catches up. The installation visit covers equipment selection, the physical swap, and a post-installation check before the technician leaves.
Heat pumps are a practical fit for Gwinnett County's climate. They cool efficiently through Georgia's long, humid summers and heat reliably through winters that rarely push below the range where a heat pump loses efficiency. One system handles both seasons. Installation involves sizing the unit to the home, setting the outdoor condenser, connecting the indoor air handler, and confirming the refrigerant charge and controls before the system goes live. If you are replacing an older AC and furnace combination and want to consolidate into a single system, a heat pump installation is worth discussing on the call.
Georgia summers push indoor humidity well above comfortable levels even when the AC is holding the temperature. A standard air conditioner removes some moisture as a byproduct of cooling, but it is not designed to control humidity independently. When the air feels heavy and damp even at 74 degrees, or when you notice condensation on windows and musty odors in the house, a whole-home dehumidifier addresses the problem at the source. The unit ties into the existing HVAC system and runs independently of the cooling cycle, pulling moisture out of the air on its own schedule. Installation is scoped on the call.
Scheduling an HVAC tech shouldn't be complicated, and neither should your thermostat. A non-responding thermostat, a display that has gone blank, or a system that will not follow a schedule can point to a wiring issue, a low battery, or a failed control board. We handle thermostat repair, replacement, and new installation, including smart thermostat setup for Nest, Ecobee, and programmable models.
A properly configured smart thermostat can reduce how long the system runs without sacrificing comfort. Pick up the phone and we'll get started.
Hot and cold spots from room to room are often a duct problem, not an equipment problem. When conditioned air escapes into an attic or crawl space before it reaches the living area, the system works harder, the energy bill climbs, and some rooms never reach the set temperature no matter how long the system runs.
We handle leaky duct diagnosis, duct sealing, ductwork repair, and full duct replacement. The diagnostic process identifies where the air is escaping and what it takes to correct it. In older Gwinnett County homes especially, duct connections that were never properly sealed can account for a meaningful share of the system's total load.
A musty smell in the house is not just a comfort complaint. It is often a sign that the air moving through the system is carrying mold spores, dust, or excess moisture into the living space. A house that feels too humid even with the AC running points to the same underlying problem.
We install whole-home air purifiers, UV air purifiers, air scrubbers, and air filtration systems that work with the existing HVAC equipment. Honest recommendations on repair versus replacement, never an upsell, apply here too: if a better filter solves the problem, that is what we tell you. If a dedicated air quality system is the right answer, we explain why before anything is quoted.
Give us a call and we will take care of it.
A spring AC tune-up and a fall heating tune-up are the two maintenance visits that matter most in this climate. A maintenance visit covers cleaning the coils, checking the refrigerant charge, testing the controls, inspecting the heat exchanger, and confirming airflow through the system. The technician also checks for anything that is wearing toward failure before it becomes a breakdown.
The value is straightforward. A system that is checked before the season runs more efficiently and is less likely to fail on the hottest day of July or the coldest morning in January. Annual HVAC inspections are open to homeowners, landlords, and property managers alike.
Property managers, small business owners, and commercial tenants in Gwinnett County deal with the same heating and cooling problems as homeowners, often on a tighter schedule. We handle commercial AC repair, commercial heating repair, commercial furnace repair, rooftop unit service, and commercial HVAC installation and replacement.
Commercial work is scoped on the call the same way residential work is. Describe the system, describe the symptom, and we tell you what the visit covers before anything is booked. We find the fault. We make the repair. We restore the comfort.
Cost questions are reasonable, and we answer them on the call. Describe the system and the symptom, and you get a rate before anything is scheduled. The price covers what was discussed. A repair call, a seasonal tune-up, and a full system replacement are priced differently, and we do not quote them the same way.
Energy-bill concerns are part of the diagnostic conversation. If the system is running longer than it should or the bill has climbed without explanation, that gets factored into what the technician looks at on arrival. Call us and we'll walk you through your options.
We serve Lawrenceville as the primary city and cover Gwinnett County broadly. Nearby communities in our service area include Duluth, Suwanee, Buford, Snellville, Grayson, and Dacula. If you are outside Lawrenceville proper but still in the county or close to it, call and ask. Most jobs in the surrounding area are within reach.
Call us at (678) 892-8789 any day between 7:00 AM and 10:00 PM.
When you call, describe what the system is doing and we will confirm the scope of the visit and the price before anything is booked. Most calls can be scoped accurately on the phone, so scheduling is straightforward once we know what we are working with.
Warm air from the vents when the AC is running, a furnace that won't turn on, a heat pump short-cycling, or a system that has stopped responding entirely all point to a service call rather than a wait-and-see approach. Unusual noises from the air handler or the outdoor unit, a frozen coil, or a sudden spike in the energy bill are also signals worth acting on. Call us and describe what you are seeing, and we will tell you what the visit covers before you commit to anything.
Yes. We handle heating and cooling work for residential homeowners, landlords, rental property managers, and commercial clients throughout Lawrenceville and Gwinnett County. The scope of commercial work is different from a single-family home, but the process is the same: describe the system and the symptom on the call, get a quote, and schedule when it works. Both property types are covered.
Call (678) 892-8789 between 7:00 AM and 10:00 PM any day of the week.
Tell us the type of equipment, what it is doing or not doing, and roughly how old the system is, and we will give you a rate for the service call or the installation before anything is scheduled. There is no need to wait for a technician to arrive before you know what the visit covers.
It helps to know the type of system you have (central AC, heat pump, furnace, mini-split), the approximate age of the equipment if you know it, and a clear description of what the system is doing wrong. If you have noticed anything unusual, like a change in airflow, a noise, a smell, or a spike in the energy bill, mention that on the call. The more detail you can give, the more accurately we can scope the job and confirm the price before the visit.
When repair costs are adding up and the system is failing more frequently, that is the point where a repair-versus-replacement conversation makes sense. We give honest recommendations on which path is right based on the age of the equipment, the cost of the repair relative to replacement, and how the system has been performing overall. If replacement is the better answer, we explain why and give you a quote before anything is scheduled.
We serve Lawrenceville as the primary area and cover communities throughout Gwinnett County, including Duluth, Suwanee, Buford, Snellville, Grayson, Dacula, Norcross, and Lilburn. If you are outside Lawrenceville proper, call and ask. Most of the county and the surrounding communities are within reach.
A repair diagnostic usually takes one to two hours depending on the system type and what the technician finds. A full system replacement takes longer, often most of a workday, because it involves removing the old equipment, installing and connecting the new unit, and confirming operation before the visit is complete. The scope of the job is confirmed on the call so you have a realistic picture before anyone arrives.
Payment is typically collected when the work is complete. The price for the visit is confirmed on the call before scheduling, so you know what the job covers going in. If the diagnostic turns up something beyond the original scope, that gets discussed and quoted before any additional work is done.
Check the thermostat settings first to confirm it is set to the right mode and temperature. Check the filter, because a completely blocked filter can cause the system to shut down on a safety limit. If neither of those is the issue, the problem is inside the equipment and needs a service call.
Call us at (678) 892-8789 and describe what you are seeing, and we will confirm what the diagnostic visit covers.
The type and age of the equipment, whether parts need to be ordered, the condition of the ductwork, and the complexity of the installation all affect what a job costs. For replacement projects, system sizing and whether the existing ductwork can support the new unit are part of the picture. All of that gets discussed on the call so the quote reflects the actual scope of the work.
Yes.
Call (678) 892-8789 any day from 7:00 AM to 10:00 PM, describe what is happening with the system, and we will scope the job and confirm the price on the call.
There is no online form to fill out and no wait for a callback window. One call is all it takes to get it looked at.
Lawrenceville HVAC Company is available every day from 7 AM to 10 PM. Ready for your system. Call now.
We find the fault. We make the repair. We restore the comfort.
Call for a quote: (678) 892-8789
From a single repair call to a full system replacement, we handle the complete range of residential and commercial heating and cooling work across Lawrenceville and Gwinnett County. The table below lays out what each service covers, who it fits best, and a practical note to help you decide where to start. Call us with any questions and we will confirm the scope before anything is scheduled.
| System Service | Scope of Work | Best For | What to Keep in Mind |
|---|---|---|---|
| AC Repair & Service |
| Homes or businesses where the AC has stopped cooling, cycles without effect, or airflow has dropped | Georgia summers put heavy load on cooling equipment, so catching a problem early in the season avoids longer wait times during peak heat |
| Heat Pump Repair & Service |
| Homes with a heat pump that is not heating in winter or not cooling in summer | A heat pump operates differently in heating and cooling modes, so the diagnostic covers both sides of the cycle, not just the presenting symptom |
| Thermostat & Smart-Control Installation |
| Any home or business where the thermostat is not holding temperature or where a smart-control upgrade is wanted | Wiring compatibility varies by system type, so confirming the match before installation avoids a return visit |
| Heat Pump Installation |
| Homes replacing a furnace-and-AC setup or adding efficient heating and cooling in one unit | Gwinnett County's mild winters make heat pumps a practical choice for year-round efficiency without the fuel cost of a gas furnace |
| Full System Installation & Replacement |
| Homeowners or property managers replacing aging equipment, systems requiring repeated repairs, or units running on discontinued refrigerant | Oversized equipment short-cycles and struggles with humidity control in Georgia's climate, so proper sizing is part of every replacement quote |
| Emergency HVAC Service |
| Any property where heating or cooling has failed and waiting for a scheduled visit is not practical | Emergency calls are available every day from 7 AM to 10 PM, and the situation is taken seriously whether it is a residence, a rental unit, or a commercial space |
| Indoor Air Quality & Air Filtration |
| Households with occupants who have respiratory sensitivities or anyone wanting cleaner air without portable units in every room | The filtration system runs every time the blower operates, so the benefit covers the whole home rather than a single room |
| Ductwork Repair & Sealing |
| Homes with rising energy bills, uneven temperatures, or systems that run longer than expected without reaching the set temperature | Leaking ducts push conditioned air into unconditioned spaces rather than into living areas, and the energy loss compounds over an entire cooling or heating season |
| Heating & Furnace Repair |
| Any property where heat has stopped working, the furnace blows cold air, or temperatures are uneven room to room | Gwinnett County winters can drop into the thirties overnight, so a heating call that waits tends to become an emergency call by morning |
| Seasonal Maintenance & Tune-Ups |
| Any home or business that wants to catch small problems before the first hot day or cold snap turns them into an emergency | Pre-season maintenance in Georgia matters because both the cooling and heating seasons arrive quickly, and a system that was not checked tends to surface problems under load |
| Whole-Home Dehumidification & Humidity Control |
| Lawrenceville homes where humidity makes a correctly cooled space feel warmer than the thermostat reads | Shoulder months bring enough indoor moisture to affect comfort even when the AC is not running frequently, and a whole-home unit handles what the AC alone cannot |
Call us at (678) 892-8789 and we will confirm what the job involves, what the visit covers, and what the price looks like before anything is scheduled.
(678) 892-8789